Drawing lubricant



Patented May 9,1933

umrao sraras PATENT. OFFICE v 1 ROBERT E. ILKI or wmr-I G, INDIANA,ASSIGNOR 'ro STANDARD 01:. oommiNx-or wnI'rING. INDIANLA CORPORATION orINDIANA RAWIN LUBRICANT m) mawmg.

This invention relates to drawing lubricants and particularly to drawinglubricants containing animal fat as an ingredient. I

The composition of the present inventionis preferably prepared in'theform of a Iconcent-rated aqueous emulsion which is capable of dilutionwith Water to a considerable-degree to provide a dilute emulsionsuitable for use in drawing and die pressing.

The drawing compound: comprises animal fat, mineral oil, and soapspreferably emulsitied with a small amount of water.

The animal fat maybe ta-llow, lard, or

other animal'fats orfatty oils and may conpositions are given.

stitute' a substantial proportion of the concentrated composition oremulsion. Forexample, it may vary between 1 and 30% thereof. Thequantity of'animal fat is, however,

"preferably from -10 to 30% since this substance is greatly desired insuch compositions and great difficulty has heretofore been experiencedin producing drawing com- I pounds containing sufficient amounts'of suchfats and retalning them in suspenslon 1n d1- lute emulsions and at hightemperatures; 3

The mineral oil is preferably a distillate lubricant oil of relativelylow viscosity.

Straw oil is suitable.

The emulsifying agents which are prefer-5 ably employed are fatty acidand rosin soaps,

sulfonate soaps derived from mineral oil,

and naphthenic soaps which may also be derived from mineral oil. Inpractice, satisfactory results are obtained with a mixture of rosin soapor sodium oleate and mahogany, green acid or naphthenic soap. The

mahogany soaps are the preferentially oili soluble sulfonates of thealkali metals. derived from mineral oils in the manner deber 26, 1918,or in other suitable manner. The green acid soaps are thealkalimetal'salts of the preferentially water solublesulfonic scribed inPatent No. 1,474,933, granted No-- vember 20, 1923, to Humphreys et al.,or

in other suitable manner. The naphthenicv ap neauo mea septe ber-a,1927.Serial No.' 217,542.-"

soaps may be (derived from naphthenic acids, obtained from mineral oilin thegmanner de-. scribed-in the Patent No. 1,681,657, granted "August21, 1928 on the application of Oscar E. Bransky, or in other suitablemanner.

The compound or concentrated emulsion may: suitably be constituted byanimal fat 1 to 30%,sulfonate or naphthenic soap .8 to

10%,mineralofl 8 to rosin or fatty acid soap 5 to 20%, water 0 to 50%,and in some cases, alcohol up to about 15%., The alcohol is used for thepurpose of aiding the init1al d1s per s1on,"but itsuse is notressential.

As'specific examples, the following com- Alcohol-r"; i The mixture isreadily emulsified with watertoyield a relativelystable emulsion.

The mixt-ure is readily emulsified and the concentrated emulsion can bedilutedto give a stable dilute emulsion. Satistactory.emulsions alsoresultif the mahogany soap, is re- 3 placed by green acid soap. Fscribed in United States Letters Patent to- Humphreys, No. 1,286,179,granted Novem These ingredients are mixed together and I emulsified inany. suitable manner,- for example,.by passlng through a grease millor acentrifugal pump. The mahogany soap may be replaced by naphthenic soapwith highly satisfactory results.

Example I V Per cent Animal fatty acid 12.0 Dry potassium hydroxide 3.0Tallow 20.0 Straw oil c 23.5 \Vater 41.5

This mix forms a relatively stable emulsion. 1

Although the present invention has been described in connection with thedetails of certain specific examples, it is not intended that suchdetails shall be regarded as limitationsupon the scope of the inventionexcept in so far as included in the accompanying claims. 1

I claim 1. A composition adapted to be readily diluted with water toyield emulsions suitable for use as drawing lubricants and comprisinganimal fat, preferentially oil soluble sulfonate soaps derived frommineral oil, and mineral oil.

2. A composition adapted to be'readily diluted with water toyieldemulsions suitable for use as drawing lubricants and comprising tallow,preferentially oil soluble sulfonate soaps derived from mineral oil, andmineral oil.

3. A composition adapted to be readily diluted with water to yieldemulsions suitable for use as drawing lubricants and comprising animalfat, preferentially oil solublelsulfonate soaps derived from mineraloil, mineral oil, and fatty acid soap.

4. A composition adapted .to be readily diluted with water to yieldemulsions suitable for use as drawing lubricants and comprising tallow,preferentially oil soluble sulfonate soapsderived from mineral oil,mineral oil, and fatty acid soap.

5. A concentrated emulsified composition comprising animal fat,sulfonated soaps de- 9. An emulsified composition suitable for use as adrawing lubricant comprising animal fat, mineral oil sulfonate soapsderived from mineral oil, fattyacid soap, and at least 3.3% of water.

10. An emulsified composition suitable for use as a drawing lubricantcomprising tallow, mineral oil, fatty acid soap, soaps derivedfrominineraloil,and at least 3.3% of water.

11. An emulsified composition suitable for use as a drawing lubricantcomprising animal fat, sulfonate soaps derived from mineral oil, mineraloil, and at least of water.

12. An emulsified composition for use as a drawing lubricant comprisingtallow, mineral oil, sulfonated soaps derived from mineral oil, andabout 40 $4; of water.

q 13. A concentrated, emulsified composition comprising animal fat,fatty acid soap, mineral oil, about 3.3%of water, and a soapselectedfrom the group consisting of sulfon ated soaps derit'cd frommineral oil and naphthenic soap derived from mineral oil.

14. An emulsified composition suitable for use as a drawing lubricantcomprising animal fat, fatty acid soap, mineral oil, about 3.3% ofwater, anda soap selected from the group consisting of mahogany soap,green acid soap and naphthenic soap. p

15; Anemulsified composition suitable for use as a drawinglubricantcomprising tallow, mineral oil,about 3.3% of water, and a. soapselected from the group consisting of mahogs any soap, green acid soapand naphthenic soap. 1 l a In testimony whereof, I have hereunto setI1n}%12lnd and seal this 1st day of September,

. 1 ROBERT E. WILKIN.

rived from mineral oil, fatty acid soap, mini eral oil and at least 3.3%of water.

6. A concentrated emulsified composition 1 comprising tallow, sulfonatedsoap derived 1 1 from mineral oil, fatty acid soap, mineral oil andat'least3.3% of water.

7 A composition adapted to be readily di- 1 luted with Water to yield arelatively stable it emulsion suitable for use as a drawing compoundcomprising animal fat, 1 to 30%, sulfonated soaps derived from mineraloil, 8 to l 4.0%, mineral oil 8 to 60%, fatty acid soap 5 to 20%, andnot more than 50% water.

r 8. An emulsified composition adaptedtobe readily diluted with water toyield an emulsion suitable for use as a drawing lubricant comprisingtallow 20.4%, preferentially oil soluble sulfonate soap derived frommineral

